Calculating-machine and type-writer attachment.



Nb 8 16, 319. PATENTED MAR. 27, 1906.

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CALCULATING MACHINE AND TYPE WRITER ATTACHMENT. APPLICATION FILED JUNE 27, 1902.

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PATENTED MAR. 27, 1906.

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APPLICATION FILED JUNE 27. 1902.

PATENTED MAR. 27, 1906.

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No. 816,319. PATENTED MAR. 27, 1906. H. HANSON.

CALCULATING MACHINE AND TYPE WRITER ATTACHMENT.

APPLICATION FILED JUNE 27, 1902.

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APPLICATION FILED JUNE 27, 1902.

11 SHEETS-SHEET 8.

NW W No; 816,319. PATENTED MAR. 27, 1906. H. HANSON.

CALCULATING MACHINE AND TYPE WRITER ATTACHMENT.

APPLICATION FILED JUNE 27. 1902.

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H. HANSON. CALCULATING MACHINE AND TYPE WRI APPLICATION I'ILBD JUNE 27, 19

TER ATTACHMENT.

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QPATnNTED MAR. 27, 1906.

H-HANSON. CALCULATING MAGHIN E AND TYPE WRITER ATTACHMENT.

APPLICATION FILED JUNE 27, 1902.

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i; liar III-III Mum-II 6 mrne s U NITED' STATES PATENT QFFIQE.v

HANS H NSON, or BROOKLYN, EW YORK. CALCULATINGQMACHINE AND TYPE-WRITER ATTACHMENT.

Specification of Letters Patent.

Patented. March 27, 1906.

To all whom it may concern:

tachments,',of which the following is a speci-' iication.

My invention relates to calculating-machines, and especially to those which are associated with type-writing machines.

The objects of my invention may be briefly summarized as follows: First, to provide simple and efficient calculating mechanism adapted. for use either in connection with or independently of printing mechanism, $01

that, on the one hand, the type-writer may be used independently of the calculatingmechanism and, on the other hand, the calculatlng' mechanism'may be used either conjointly with or independently of the printing mechanism of the type-writer; second, to provide in a calculating-machine, means whereby the adding-keys may be struck in the natural order of succession-to wit, in

theorder in which the numerals of a number p or sum are read from the left to the right;

third, to provide in connection with a type writer or printing mechanism a calculating mechanism in which the so-called .touch of the adding-keys is as light or approximately as light as that of the keys of a standard type-writer; fourth, to provide in a calculating-machine preliminary-representation devices which are adapted to be set under the action of the adding-keys and to be subsequently brought into action to operate the numeral-wheels of the register by means iiidependent of the adding-keys; fifth, to provide means whereby errors in the setting of these preliminary-representation devices may "be corrected at any time before they have been brought into action to transfer the amount on the register-wheels; sixth, to pro-. vide means whereby the so-called adding mechanism may be usedto perform multiplication; seventh, to provide means whereby, the type-writer and calculating mechanism may be used to do tabulated work; eighth, to provide means whereby a number or sum may be written solid thus, $234567, orma be separated by commas and a dollar an cent mark thus, $1,234,567 .89, and, ninth, to provide simple and efiicient mechanism whereby the above-noted objects and others, which will hereinafter appear, may

be carried out. 7

To the above ends my invention consists of the novel devices and combinations of devices hereinafter described, and defined in the claims.

The following is a brief outline of the machine illustrated in the accompanying drawings and hereinafter more specifically described, which machine embodies the several featuresof my invention. The type-writer employed in this instance for the application of my invention is What is known as the Underwood type-Writer. in the keyboard of the type-writer or closely associated therewith is located a row of adding-keys, so called to distinguish them from the ordinary numeral-keys or key-levers of the typewriter. These adding-keys are made up each of two parts or sections and are so arranged that when one part of the key is struck or depressed the corresponding numeral-key lever of the type-Writer will be depressed to actuate the printing mechanism of the type-writer, and the calculating mechanism will also be actuated to record the result; but when the other key-section is struck or depressed the calculating mechanism will be actuated to record the result, but the corresponding. numeral-key lever of the type-writer will not be acted upon, and hence the corresponding numeral will not be printed. Nine so-called units-bars,-

which are preferably extendedtransversely .of the machine, ,are arranged to be depressed by the corresponding addingkeys. The register for re isterin the results of the computations involves. a p urality of humeral or adding wheels located side by side, to-

gether with carrying mechanism of novel construction. For each numeral-wheel of order, there is a so-called ecimal-order 'bar, which when moved forward operates its These decimal-order bars, hereinafter for brevity called corresponding numeral wheel.

.theregister, except the one of hi hest decimal raised, and this is accomplished by a so-called decimal-order selector and associated devices, the best form of such selector being a rotarytappet-drum having spirally-arranged tappets, which acting throu h intermediate devices lift and then drop t e decimal-bars one at a time in an order of succession from the left toward the right. This tappet-drum is driven intermittently from a motor-spring afforded by the motor-spring of the type-' writer, and the timing of the parts is such that c any particular decimal-b ar,with-its nine unitspins, will be in a raised position at a time when one of the units-bars is depressed, all these actions of course being controlled by the depression of an adding-key. When a units-pin of each decimal-bar, or of anumberj a so-called operating-carriage, which carriage is moved by a handlever and is provided with a so-called driving-bar, which as the carriage moves forward engages the depressed units-pins, collects them in a trans- 1 versely-lined row, and imparts movements to the decimal-bars depending on the normal relative positions of the depressed pins to the said driving-bar. I are usually differential, but which will be the same if the same adding -key is each time struck, are imparted to the decimal-bars, and hence to the corresponding numeral-wheels of the register. The carrying of the tens from the one numeral- Wheel onto the wheel of next higher order takes place on the return movement of the operating-carriage. Means is also provided whereby on the initial return of the operating-carriage the set or depressed units-pins which'have then performed their work will be restored to normal positions.

To provide for doing so-called tabulated work, the registers, the groups of decimal- .bars, and the spiral series of tappets on the tappet-drum are duplicated and may be further increased in' number at will; but the same set of adding-keys and units-bars may be employed, it being necessary, of course, that the latter be sufliciently extended for actionon all of the units-pins of the several groups of decimal-bars. Devices for correcting errors and for performing multiplication are also provided; but these, as well as the novel and peculiar disposition of the tappets of the tappet-drum or decimal-order selector, whereby so-called solid work or punctuated work may be accomplished at' will are Thus movements which.

It is thought that the foregoing general out- 7 line of the machine will prepare the reader for a quick understanding of the construction and operation of the machine, as here inafter given.

In the detailed description of my invention Y as illustrated the following grouping ofmechanisms has been made, and each group of mechanism has been designated by the following characters, to wit:

Type-writer and case supporting the same, designated by numerals. Register, including carrying mechanism, design'atedby a and its powers.

Adding-keys, units-bars, and intermediate connections, designatedby b and its powers.

Decimal-order bars, preliminary-representation or units-pins, operating-carriage, and

associated parts, designated'by c and, its

powers.

Decimal -"order selector or rotary tappetdrum and associated devices, designated by f and F and their powers.

Hand-lever and connections, designated by g and its powers.

Tabulating mechanism, designated by 7c and its powers.

Error-correcting devices, designated by n and its powers.

Zero devices, designated by p and its 1 powers.

Multiplication devices, designated by 15 an its powers.

My invention is illustrated in the accompanying drawings, wherein like characters indicate ike parts throughout the several views.

Figure 1 is a plan view of the principal parts of the calculating mechanism, the same being uncovered, some parts being broken away and some parts being removed. Fig. 2

is a view, partly in side elevation and partly in section, showing both the type-writer and the calculatin mechanism, parts of the former being bro en away and the latter being sectioned on the irregular line 00 x of Fig. 1. Fig. 3 is an end view of the rotary tappetdrum or decimal-order selector, showing the complete arrangement of the tappets thereof. Fig. 4; is a detail in leftside elevation showing one end of an oscillating frame, a portion of the operating-carriage of the calculating mechanism, and a latch-lever cooperating with said parts- Fig. 5 is a view in side elevation showing the forward portion of the case of the calculating mechanism and certain parts mounted on the left-hand side of IIO the same; Fig. 6 is a vertical section on the line. as m of Fi 1, a portion only of the type- Writer being s own. Fig. 7 is aview principally in right side elevation, showing the calculating mechanism, the case thereof being sectioned so as to expose some of the inclosed mechanism to view. Fig. 8 1s afront elevation on the line as of Fig. 2 and with someparts broken away. Figs. 11 and 1 2 are details, respectively, in side elevation and in plan, of the shipper-lever for operating the gear-clutch shown in Fig. 10. Fig. 13 is a perspective view showing the head or free 7 positions.

' pins in elevation.

frame, best shown in Fig. 15.

end of the hand-operated power lever of the machine, the tabulating-keys which are carried thereby being removed. Fig. 1.4 is a detail in section on the line as a) of Fig. 13, with the tabulating-keys shown in working Fig. 15 is a plan view, with some parts broken away, of the units-bar actuating connections and the frame in which such parts are mounted. Fig. 16 is a view, partly in front elevation with some parts removed and some parts broken away and partly in section, on the line x of Fig. 2. Fig. 17 is a section on the line w" 00 of Fig. 15. Fig. 18 is a similar viewto Fig. 17, but with certain of the parts shown in the former view removed. Fig. 19 is a plan view of one section of .the mechanism shown in Figs. 16, 17, and 18. Fig. 20 is a side elevation showing one of the so-called decimal-bars. Figs. 21 and 22 are plan views of the same, the latter having some parts broken away. Fig. 23 is an end elevation of the parts shown in Fi 20. Fig. 24 is a section on the line 20 00 0 Fig. 20, theso-called units-pi1is being removed therefrom. Fig. 25 shows one of the units- Fig. 26 is a plan view showing in part the addin wheels and carrying mechanism of one of t e registers. Figs. 27 to 31, inclusive, are details of the addingwheels. and parts carried thereby. Figs. 32 and 33 are details of the composite carrying- Wheels. Fig. 34 is a perspective view of one of the liftin and trip ing levers which cooperate with t e decima -bars of the calculating mechanism. Fi 35 isa perspective view of '.one of the latchooks which cooperate with the lifting and tripping levers in Fig. 34. Fig. 36 is an elevation of'one of the adding-keys, showing also by dotted lines a loose rack which cooperates therewith. Fig. 37 is a section on the line 00 x of Fig. 36. r Fig. 38 isa perspective view ofthe rack shown in dotted lines in Fig. 36. Fig. 39 is a plan view of a part of the rectangular supporting- Fig. 40 is a plan view showing parts of the multiplying device. Fig. 41 is a section on the line as? at i of Fig. 1. Figs. 42,. 43, and 44 are sections on the line a? a) of Fig. 26, illustrating different positions of the parts of the addingwheels and carrying devices, some parts be ing broken away and others being removed.

Fig. 45 is a View corresponding to Fig. but

' The motor-sprin showin different positions of the parts of the mu tiplying device. Fig. 46 is a detail in side elevation showing a portion of the operating-carriage and certain associatedparts.

be here stated, is mounted upon the top of a Q boX-like case 2, which latter, as will be hereinafter noted, incloses the principal parts of the calculating mechanism. 3 indicates the impression-roller 4, the type-writer carriage;

5, the type-bars 6, the character-keys; 7, the

numeral-key levers, which levers are yieldingly pressed upward by springs, (not shown and 8 vthes 'acing-bar or bail of said typewriter, whic bar or bail is also yieldingly held upward by a spring. (Not shown.) A

bracket 9, Figs. 2, 6, and 10, sup ortsthe carriage-spring power. device, of w 'ch'lO is the spring-barrel, 11 the tapes, 12, the tapedrum; 13, the ratchet-wheel, and 14 a fixed stud on which is'pivoted the retaining-pawl 15, which holds said ratchet-wheel 13 against the tension of the motor-spring 16. The

ratchet-wheel 13 is provided with a stud 17 for turning it to wind up the spring 16, and the tapes 1 1 are Wound reversely on the drum .12, and their oppositely-extended ends are secured to lugs 18 of the type-writer carriage 4, Fig. 10, for positively moving said carriage in both directions under theaction of the hand-lever of the calculating mechanism and under the action of the motor-spring of the type-writer, aswill hereinafter appear.

19, to the inner end of which is attached. a tape-drum 12 and to the outer end'of which is attached abevel-gear 20, said gear and drum being thus caused to rotate in unison. A rotary'shaft 21 extends axiallythrough and is loosely journaled in the sleeve 19 and 'carries at its inner end the springbarrel 10 and at its outer-end the ratchet-wheel 13'.

16, which is within the spring-barrel 10, is at its inner end attached to the shaft 21, and at its outer end is ,at-'

tached to a'stud 22 of the tape drum' '12.

ment of the tension. of the motor-spring 16, the same aszin an ordinary type-wrlter. The supporting-case 2 has perforations through its top-plate, which ermit free movements of such of the parts oft e calculating mechanism as are passed therethrough, and at its forward portion it is curved downward and reduced In a' bearing of the bracket 9 is mounted a'sleeve.

' This construction provides for the adjust Each register involves a plurality of adding-" wheels marked on their peripheries with the numerals to 9, inclusive, and positioned so that these numerals will be exposed successively to view through the sight- 0 enings 23 of'the case 2, there being, as s own, ten such wheels in each group or for each register. These adding-wheels a are mounted for independent rotations in one direction on a shaft (1/, which extends transversely of the machine and is journaled in vertical bearing-plates e secured to the bottom of the case 2. The said shafts a are independent of each other, as clearly shown in Fig. 8, wherein the adding-wheels of one register are shown removed from one of the shafts. hub a of each adding-wheel and receives a differential movement from its cooperating decimal'bar, as heretofore indicated and hereinafter more fully described. Between the loose gear a and a web of theaddingwheel a is a ratchet-wheel a that is attached to the saidgear a .The adding-wheel a carries a spring-pressed pivoted pawl a, which ooijperates with said ratchet-wheel to turn the adding-wheel in the direction of the arrows marked on Figs. 2 and 30 when the gear a is rotated by the forward or-operative movement of its decimal-bar. This pawl, however, permits a reverse movement of the said gear a and ratchet-wheel a without causing a return movement of said adding-wleeel a therewith. On the other side of the adding-wheel a is attached a wheel at, having ten teeth, and pivoted to this same side of said adding-wheel is a spring-pressed pawl a which engages a shoulder a of the shaft a when theshaft is moved in the direction indicated by the arrow marked on Fig.

31, this being the movement which is accomplished b the so-called zero devices, hereinafter escribed. The adding-wheels are held against accidental movement by friction-pawls a pivoted on a transverse bearing-s aft a, supported by the bearinglates a These awls a are shown as ro- P P P vided with rollers a at their forward ends,

that engage in the notches between the teeth 7 of the wheel (17, carried by the corresponding adding-wheel a. a are connected to springs, (1 the other ends The rear ends of the pawls of which springs are attached to parts hereinafter described, as best shown in Figs. 2 and 6.

The carrying mechanism of the register is best illustrated in Figs. 2, 6, 42, 43, and 44. Parallel with and rearwardly of each addingwheel shaft 0/ is a shaft a also supported by A gear a is loosely mounted on the ahead of the carrying-wheel in Fig. 42.

the brackets of and having loosely mounted thereon a series of composite carrying-wheels in number one less than the number of the cooperating adding-wheels, and each consistin 0 three sectionsto wit, a six-toothed whee a, a three-toothed wheel a), and between these two wheels a nine-toothed star-wheel a, the three wheels being connected to rotate as if one and being frictionally held against accidental movements by a pawl a mounted on the same shaft 0, on which are pivoted the pawls a heretofore described. The springs 0, heretofore noted, connect the awls a and a and yieldingly press the ee ends of said pawls a against the teeth of corresponding star-wheels a", as shown inw 1 be noted that the six-toothed wheel 0, lies in the path of a single tooth a, carried on the periphery of the corresponding adding wheel a. .When one of the adding-wheels a is moved from its ninth to its tenth or zero position, its tootha engages the tooth of the carrying-wheel a, which stands within its arc of movement, and will thereby shift the composite carrying wheel from its normal position (indicated in Fig. 42) into its intermediate position, (indicated in Fig. 43,) in which position it remains for the time being. The above step movement of said carryingwheel is a one-ninth of a complete rotation.

The teeth on the wheel 0, were of course shifted one step with the shifting of the wheel (1, but were not moved within the arc of movement of the teeth of the wheels a.

Rearward of the shaft a is a shaft a which carries radiating gear-segments or two toothed arms a, that are spaced apart laterally and set spirally on the shaft a, as best shown in Figs. 1, 2, and 26. arm a for each carrying-wheel (1 and the latter lie in the paththereof, so that when said carrying-wheel has been shifted from its normal position, as shown in Fig. 43, one of the advance teeth thereof will be engaged by the teeth of said arm when the shaft a is os cillated from the positionshown in Fig. 43

into the position shown in Fig. 44. Thismovement of the said shaft (1. carries the toothed arm a from the position indicated in Fig. 43 into the position indicated in Fig. 44 and causing the same to act upon the wheel a and impart a further two-ninths of a complete rotation to the composite carrying-wheel, so that the carrying-wheel in Fig. 44 stands one-third of a complete rotatioIn t should also be noted that if the toothed arms a be moved while the carrying-wheel stands There is one 2o subsequent movement of. the

as shown in -Fi gs. 42" and 44 it will have no action whatever on the said carrying-wheel. However, the movement of the composite carrying-wheel from the position indicated in Fig. 43 into the position indicated in Fig. 44

causes one of the teeth of the three-tooth wheel a to engage one of the teeth of the tentoothed wheel a, which belongs to the adding-wheel of the next higher denominational 1o order .and imparts a one-tenth rotation thereto, thus carrying onefrom the lower to the'higher denominational-order. It is now evident that all of those composite carryingwheels which have i not in advance of the 1.5 movement of the toothed arms a beenmoved from normal positions by the action thereon of the tooth a" of the corresponding numeral-wheel will remain in normal position and not be effected in any way by the 2 5 ment of its cooperating gear or carrying wheel 0 before the next toothed arm begins action on its cooperating carrying-wheel, so

that the movement of carrymg from the units order to the-tens order is made full and com- 30 plete'before the carrying from the tens order to the hundreds order is started, and so on, throughout all the orders. The circumferential distance between the first and the last toothed arms a (see Fig. 2) must be sufli- 5 cient to leave an open space for the free passage of all of the teeth of the six-toothed carrying-wheels a.

The shaft (L (see Figs..-1,' 6, and 8) carries a loose pinion a at one end, and a spring- 0 pressedpawl a, pivoted on saidpinion, en-

gages a shoulder a, of said shaft when said Binionis'rotated in the direction indicated y' the arrow marked in Fig. 6, so that the toothed arms (L21 will be positively moved un- 4 5: der such movement of said pinion, but will not be moved under reverse movement of said pinion. The. inion a meshes with a spur-gear (L suitab y j ournaled on a stud a, which projects inward from the l efthand side of the case 2. The gear a receives positive rotary movements in both directions under the forward and return movements of the operating-carriage and its rack 0 and im-- parts such movements to thepinion (L and to its driving-pawl (1 Under the forward movement of the operating-carriage the pinion a, is given one complete rotation in a direction reverse from that indicated by the arrow marked on Fig. 6, and under this moveo'ment the pawl a slips over the shoulder a of the shaft a thus leaving said shaft and its toothed arms a standing in their normal positions. Under the return movement of the operating-carriagethe said pinion a, is

given a complete backward rotation in the.

accidental or return movements. corresponding end of the shaft 0/ is a dlsk a cooperating direction indicated by the arrow marked on Fig. 6, and under this movement the pawl a engages the shoulder a of the shaft a and .impartsone complete rotation to the said shaft and its toothed 'arms a. On the shaft a near one end thereof is a disk 0., (see Fig. 41,) which has a single notch that is normally engaged by the free end of a springretaining pawl a on one of the brackets a By this means the shaft a and its toothed arms a. are held in normal positions against On the having a single notch that is normally engaged by the free end of a spring-pressed retaining-pawl a which, as shown, is pivoted on the shaft (1. This pawl a holds the shaft (1/ in normal position against accidental movements. 1

Adding-keys, units-bars, and intermediate connections-The adding-keys are mounted for vertical movements, as shown, in the flanges of a channel-bar b, which is rigidly secured to the type-writer frame 1. These keys bare centrally located over the corresponding numeral-key levers 7 of the typewriter and bear corresponding numbers on their respective heads or key finger-pieces, the

said adding-keys being marked'from the left toward the right with the successive numerals 1 to 9, inclusive, as shown in Fig. 47. The stems of the'keys b are tubular and are slit or divided at their lower portions, as indicated at b, so that they straddle the corresponding numeral-key levers 7, and are further formed with shoulders 15 As shown in Figs. 2 and 16, an escapement-actuating blade 6* is pivoted at its ends and lower edge to the. sides of the type-writer spacing-bail 8 in position where when thrown pivotally rearward its upper edge will be engaged by the shoulders I) of the keys I). At one end this blade .1) is provided with a finger-piece 11 by means of which it may be turned from its normal position (indicated by full lines) into an inoperative position, (indicated by dotted lines in Fig. 2,) in which dotted-line position it will not be engaged by the said shoulders b As is evident, the depression of one of the keys I) when the blade o is in its operative position will depress the escapement-bail 8 and'actuate 'the escapement mechanism of the type-writer, regardless of whether or not one of the numeral-key levers 7 is depressed. This, as will presently be noted, is an action that is necessary when the machine is manipulated to actuate the calculating mechanism without operating the printing mechanism of the type-writer.

' In the upper unslotted portion of each key I) is telescopically inserted a supplemental key I)", having at its upper end a head or finger-piece which fits a recess in the head of the key band is of course much smaller in diameter than the latter. The numerals which indicate the numerical values of the severaladding-keys arepreferably marked directlyon the heads of the supplemental keys b". The stems of'the supplemental keys I) are provided -at their lower ends with laterallywhich engage the lower flanges of the channel-bar b to limit the upward movement of both sections of the key, and which, further, afford extended surfaces for engagement with the forwardly-projecting ends of the numeralkey levers 7. The object of thus having a key within a key or, in other words, a key formedin-two sections is to-afford simple and efficient means for operating the adding mechanism without operating the typebarsas, for instance, when performing multiplications, at which time it isnot desirable to print all of the figures entering into the calculation, it being sufiicient to print the multiplicand, the multiplier, and the product.

Loose stub-racks b are positioned vertically, one just below each adding-key I), .(see Figs. 2, 16, 36, and 38,) the said racks being mounted to work through seats b, Fig. 29, formed in a forwardly-projecting flange of a rectangular frame 6 Figs. 1, 2, 15, and 16, which frame is rigidly secured to and extends transversely across the upper central portion of the case 2. The stub-racks b are for conveniencein assembling the parts made separate from the keys I) but so far-as their principal function is concerned they might be il'iigidlly secured to or formed as parts of the eys The nine parallel so-called units-bars b are located within the rectangular frame b and extend transversely of the machine, be-

ing spaced apart fromfront to rear of the machine distances which represent units of movement of the numeral-wheels of the registers. (Here direct attention to Figs. 2, 5, and 15 to 19, inclusive.)

Journaled in the front and rear bars of the rectangular frame b is a series of nine shafts I)", having at their forward ends gears I2 (shown as segmental in form,) which gears mesh one with each of the stub-racks b of the nine adding-keys I). These racks, it should be. here noted, are further guided and held in mesh with said gears by headed guidepins b, projecting from the frame I). On the forward ends of the shafts b are torsional springs 12 for returning said shafts, and the-adding-keys connected thereto, to their normal positions after said keys have been depressed and released by the finger.

The units-bars I), just above noted, are supported from the rectangular frame 6 by bell-cranks 6 mounted on transverse fixed rods I)", also supported by said frame I). The upper arms of the bell-cranks I) are connected bytie-bars I2 which extend one over each units-barb as best shown in Fi s.

'15, 17, and 18. With these supports when one of the tie-bars 6 is moved toward the left with respect to Figs. 17 and 18 the corresponding connecting units-bar b will be forced downward, and to accomplish such movement by the depression of the addingkeys I) the following provisions are made: Each tie-bar b1 carriesa spring-pressed pawl b, which is normally held against a stop-pin b with its free end in position to be engaged by a tappet-lug 6 on the corresponding rock-shaft I). By reference to Figs. '15 and 17 it will be noted that the said pawls 6 are located at different points on their respective bars b, so that they are brought into the proper positions with respect to the corresponding rock-shafts b. With this construction when one of the numeral-kc s is depressed and the corresponding shaft 12 is 'rocked'its tappet-lugb will engage the co operating pawl, 12, force the corresponding tie-bar b tow'ard the left, depress the corresponding connected units-bar b and then pass beyond the said pawl, thus permitting said two bars b and b to be immediately returned to normal positions under the action of a spring b, which, as shown, is attached to per. This makes it impossi le to print thefigures on the paper through the de ression of one of the adding-keys without st setmore fully appear. The above action also prevents accidental conflict betweenthe units-bars and other parts to be hereinafter described Decima Z-bars, preliminary representation or units-pins, operat'lng-caw iage, and associated parts-Extending from front to rear of the machine, below the so-c'alled units-bars b,

and hence at'a right angle to .the latter, are

the independently-movable. so-called decimal-bars c, of which there are, as shown, nine for each registerto Wit, "one for each adding-wheel of each register except for the register-wheel of the highestnumerical order. 7 The number of these bars 0 represent the number of columns of figures which may be added together. Otherwise stated, from the right toward the left they stand, successively, for the units, tens, hundreds columns,

-said bar b t and to a bar I), secured on the Furthermore, the timing of the 'ting'certain-of the units-pins, as will presently and so on, and hence these so-called deci-' mal-bars might have been desi nated as the column-bars? to Figs. 1, 2, 5, 20 to 25, inclusive, and Fig. 42. At their forward ends the decimal-bars 0 have toothed portions 0, which mesh with the gears a of the respective adding-wheels a and are notched at c for engagement with a fulcrum-rod a of the traveling carriage 0 which carriage has wheels 0 which run over tracks a on the bottom of the case 2, said carriage being thus mounted for movements from front to rear of the machine. At their forward portions the column-barsc rest on a supporting-bar 0 that is supported by the case 2 and is provided with vertical projections that space apart the said bars. At,

their rear portions said decimalbars 0 rest upon the lower of a pair of transverse barsc, which bars are supported by the case 2 and are provided with vertical portions which space apart the rear ends of said bars". Those portions of the bars 0 which normally stand rearward of the bars a are of such vertical dimensions that when the said bars are drawn forward they are held against vertical I movements by the bar 0 Normally, however, the rear portions of said decimal-bars may be raised slightly, as indicated by dotted lines in Fig. 2, for a purpose which will here-E At theirextreme rear ends: the said bars 0 are provided with undercuti shoulders c for a purpose which will alsof Each decimalbar c: carries a series of nine vertically movable units-pins 0 mounted in laterally turned flanges c of the said barsand frictionally inafter appear.

hereinafter appear.

held in Whichever position they may be set by light springs c", interposed between the (See same. Figs. 20' to 25, inclusive.)

When the decimal-bars 0 stand in normal po-I sition, the units-pins thereof stand under their respective units bars I), but lie below the same such distance that the depression of any of the units-bars will not engage the respective units pins unless the rear portion of a decimal-bar has .been raised, as indicated by dotted lines in-Fig. 2, in which case, however, the depression of any units bar will force downward or set the corresponding units-pinwhich lies directly under the same. A transversely extended push-bar e rigidly connects the side bars ofthe carriage c and normally stands just rearward of the rearmost units-pin 0 with its upper portion at suchelevation that when-the carriage is moved forward itjwill clear the lower ends of such of the units pins as have not been forced downward or set. (See Figs. 2 and 5.) On the outer surface of one side bar of the carriage 0* is a horizontally-extended rack Fig. 7, and on the outer side of the other side bar of the carriage is a similar but-longer rack bar 0 Fig. 6, which latter rack bar meshes. with the intermediate gear a which Attention is ere directed gear, as heretofore described, meshes with the pinion a on the. common carrying-shaft a of the several registers The said two rack-bars also mesh with pinions e 'on a transverse shaft 0", which shaft is journaled in the case 2 and receives motion to reciprocate the carriage c from a hand-lever hereinafter described. Such of the units-pins 0 of the decimal-bars c as have been pressed downward or set in one operation must be restored to normal position before starting a carried by one side of the traveling carriage e and limited in its upward movement by a stop 0 Each: time the carriage 0 moves forward the pawl 0 yields in passing under the lug c and then springs upward in front of the same,so that under the initial return movement of said carriage it will act upon said lug e and force the free edge of the re storing blade upward against such of the units pins as have been depressed, it being understood, of course, that all the depressed units-pins will by theaction of the drivingbar 0 have been alinedor gathered in a straight row immediately above the saidrestoring-blade under the extreme forward movement of the said carriage and at this time have done their work. 1

Decimalorder selector :or rotary tappetdrum-amt associated devices.This-group .of

mechanism comprises a selector, advisably in the form of a'rotary drum having spirallyarranged tappets, connections between sald drum and the motor-spring of the type-writer, whereby it is operated therefrom, andlifting and tripping devices whereby under the action-of thesaid tappet-drum or selector the decimal-bars c are raised into positions to present their units-pins to any depressed unitsbar one at atime from the left toward the ri htt0 Wit, in the order of succession in w 'ch the figures are struck on the numeralkeys and are printed on the paper in the typewriter. The spring-driven gear 20 (see Figs. 6 A

and 10) meshes with a sliding pinion f, carried by the upper end of a shaft f ,which shaft at its upper end is journaled in a projectronf of a bearing bracket f rigidly secured on the rear portion of the type-writer frame 1, the lower end of said shaft being mounted in a bearing f secured to and within the case 2. (See also Fig. 2.) The bracketf supports a pivoted shipperdeverf the pronged end of which engages a groove in the hub of the sl ding pinion f and the other end of which carries a spring '-pressed lock-pin f, (see Fig. 12,)

' g which is adapted to engage with either of a pair ofperforations on the bracket f (See Fig. 10.) By means of this shipper-lever the pinion f can be slid in and out of mesh 5 'with the bevel-gear 20 for connecting or disconnecting at will the shaft f for movements with the type-writer carriage, according to whether the type-writer and calculating-machine are to be operated in connection with or independently of each other, and also, as will hereinafter appear, for the purpose of changing the position of the type-writer carria e and selecting mechanism relatively to eac other. As a means for causing the pinion f to rotate with the shaft f but permitting it to slide thereon, said shaft is shown as provided with a collar f having perforations through which workparallel pins f carriedbyacollar f "of thesaidpinion f. (See 20. Fi s.2 and 10.) The shipper-leverf is provi ed with a lock-flange f ,which when the pinion isshifted out of mesh with the gear 20 enters a space between the teeth of said pm ion and holds it in position to register eX- actly with the teeth of said wheel 20 when they ,are again connected, thus preventing jamming of the teeth'and the improper connection of the gear and pinion with respect to relative positions. The said gear 20, it

will be understood, is heldfor proper re istration with the said pinion by the rackar and springof the type-writer carriage mech anism. Inasmuch as the typewriter car- -r1age can be changed to any desired position 'relat1ve to the calculating mechanism, it is obvious that in making calculations the eX-' act position of the figures on the paper in the type-writer depends on the relative position of the type-writer carriage and calculating 4Q mechanism, and by properly timing .the

type-writer carriage with respect to the selecting mechanism the groups of columns of figures may be located on the paper wherever desired, and the s ale and indicator of the type-writer can be used to determine the relative position of the typewriter-carriage with respect to the selecting or actuating mechanv ism of the calculating-machine or attachment.

The arrangement of the selector or tappet- 5 drum is bestshown in Figs. 1, 2, 3, 6, and 10, by reference to which it will be seen that the drum-body f is secured on a transverselyextended shaft f which is mounted to rotate in and slide through the sides of the case 2 and is provided at one projecting end with a wide-faced pinion f 14 and a knurled head orfinger-piece f. At its other end, inside of the case 2, said shaft f is provided with a collar f having three grooves, any one of which grooves are adapted to be' engaged by a spring-held detentsf The shaft of this detent f is journaled in a sleeve f 18 on one side of the case 2 and is provided at its outer end with the fin er-piece f which when de- 6 5 pressed raises t c said detent-out of engagement with the groove-collar f The said detent is normally yieldingly drawn against a stop f which projects from the bottom of the case 2 and prevents the said 'detent from being drawn, by its spring, into frictional engagement with said collar f At its lower end the shaft f carries a bevel-pinion f that meshes with an annular bevel-gear f,

which is loosely mounted on the intermediate portion of the drum f and is held against sliding movements by bracket f securedto the bottom of the case 2 and engaging a groove in the hub of said gear. To cause the gear f 22 and drum f -to rotate together, but to permit the latter to slide through the former, said gear is provided with projecting pins f, that work loosely through perforations of a collar f thatis rigidly secured on the said drum.

The tappet-drumf is equipped with two double sets of tappets F F, one doubleset for each set of calculating devices or registers and actuating mechanisms, and with the bevelgear f conveniently located between the two double sets of tappets. The number of tapets F F is of course determined by the numer of adding-wheels, there being one more of each than the number of adding-wheels in each register, so that consequently in the present instance eleven tappets F and eleven tappets F are employed in each set. These tappets are arranged'in spiral succession. The. tappets F are spaced apart longitudinally with respect to the so-called decimal-bars c, and the tappets F are set intermediate of the tappets F longitudinally of the drum, but are at intervals oifset out of a true spiral line, this a keeperarrangementof the said tappets being clearly illustrated in the diagram View Fig. 48, in which the drum is shown as if laid out flat.

This diagram view will further serve to illus-,

trate the fact that the so-called decimal-order selector is not limited to a drum-like or rotary form, but, on the contrary, that the tappets are capable of any arrangement wherein they are brought into the relation indicated in the said diagram yiew, or in other arrangements within the broad principle involved. Furthermore, the'so called tappets themselves may take various forms. The arrangement and function of these tappets F F will more clearly appear in the description of the operation.

I Above the rear ends of the column-bars 0 is a transverse rod f supported by the case 2,

and. on which is pivoted a series of latch.-

hooksf, Figs. 1, 2, 6, 10, 34, and 35, each of which hooks is bent laterally to form a shoulder f and is further provided with a forwardly-extended stop-armf. A springf yieldingly. holds the arm f 29 against a fixed stop f that limits themovement of the said hook in a forward direction. There is one of these so-called hooks f 27 for each decimalbar 0, and the said hooks are so disposed with res ect thereto that any one of the said deci-- f of the corresponding hook and temporing frame f.

, bar 0 of the lowest order.

arily hold said bar upward, as indicated by dotted lines in Fig. 2, in which position, it willbe remembered, the units-pins of the lifted bar will be so elevated that they may be engaged and set by the corresponding units-bars b which may be depressed.

Just below the rear ends of the decimalbars 0 is a vertically-disposed oscillatingframe f which, as shown, is made upof a pair of end supports and a pair of transversely extended rods, the lower member of which rods pivotally connects the said oscillating frame to the sides of the case .2, as best shown in Figs. 1, 2, 4, and 6. This oscillating frame is normally held in position by latchlevers f, pivoted on a transverse rod f, supported by the sides of the case 2 and connected by springs to the upper side portions of the osci 'ating frame f, as best shown in Fig. 4. The rear ends of latch-leversg are provided with up er and lower es'f flthat cooperate wit pins f ro-.

notc jecting from the end supports of the osci lat- Rollers f on the sides of the carriage c act upon the free ends of the latchlevers f in a rnanner which will presently be described. Pivoted on the upper rod of the oscillating frame f is a series of liftinglevers f equal in number to the number of adding-wheels. Each lifting-lever f has a rearwardlyprojecting tappet-arm f nor mally located in the path of the cooperating tappet on the tappet-drum and adapted to be engaged thereby to depress said arm, lift said lever f and raise the rear end of the corresponding decimal-bar 0. Again, each lifting-arm f has a tripping-armf which at the proper time engages one of the hooks f 27 and causes the latter to release andlet fall the decimal-bar of next higher order which wasjust previously lifted. The transverse rodf, already described, serves as a rest for the several lifting-levers 7". Each decimalbar 0 has its own lifting-lever f and latchhook f and, as shown in Fig. 1, there is one extra lever f 39 for tripping and letting fall the By reference to Fig. 34 and the other views just noted it will be seen that the free end of the lifting-army is turned laterally, so that it will stand directly under the corresponding decimal-bar c, and that the free end of the vertically-extended tripping-arm f 41 is bent laterally, but in a reverse direction, so that it will engage the laterallyoffset depending end f of the (See Figs. 6

3", which stands farthest toward the left, with respect to Fig. 1, it will move said lifting-lever into the position indicated by dotted lines in. Fig. 2 and cause said lever to raise the decimal-bar c of the highest numerical or der into a position where it will be caught and temporarily held by its cooperating hook f Now when the second lifting-lever from the left is by the next tappet-pin acted upon as just described and caused to lift the second decimal bar in the manner just described such, movement of the said second lifting-lever will cause its tripping-arm f to operate on the hook f of higher order and cause'the same to raise and dro the decimalbar of next higher order, which atter bar was just previously lifted and caught by its hook and dropped'again, and it should be rememberedthat the timing of the movements of thesaid tappet-drum, under the action of the motor-spring of the type-writer, is such that the column-bars will be in a raised position at a time when one of the units-bars b is depressed by the action of an adding-key. When the carriage 0 moves forward, its rollers f Figs. 4 and 6, acting on the forward ends of the latch-levers f, force downward the rear ends of said levers, so, that the springs f 35 may rock the oscillating frame f forward and carry the pins f thereof into the upper notches f of the said levers. When the frame f is'thus rocked forward, the tappet-arms f of the lifting-levers f are carried forward out of the arc 'of movement of the tappets F F of the tappet-drum, so that the said tappet-drum may, without interference, be rotated back to normal position, when the type-writer carriage is moved from the left toward the right, which movement of said type-writer carriage may be imleverf, the lower notc es f of which again engage with the pinsf. of said frame.

H and-lever and connections-A hand-lever g is secured to the outer end of a short shaft g, journaled in a sleeve 9 secured to and projecting from the adjacent side of the case 2. At its inner end the shaft gis provided with a segmental gear 9 that meshes with a pinion g on the shaft 0", as before described.

\ (For the above construction see particularly Figs. 1, 7, 8, and 9.) When the hand-lever g is given a complete oscillation from its rearmost to its most forward position, motion.

will be transmitted through the segmental ICC 

